Uncaught Error: array_merge(): Argument #2 must be of type array, null given
in /homepages/u68350/wp-content/themes/ws_eschenbach/content.php on line 30

Call stack:

1. array_merge(array, NULL)
   wp-content/themes/ws_eschenbach/content.php:30
2. require('/homepages/u68350/wp...chenbach/content.php')
   wp-includes/template.php:812
3. load_template('/homepages/u68350/wp...chenbach/content.php', false, array)
   wp-includes/template.php:745
4. locate_template(array, true, false, array)
   wp-includes/general-template.php:206
5. get_template_part('content', 'post')
   wp-content/themes/wp-jb-theme/archive.php:34
6. include('/homepages/u68350/wp...jb-theme/archive.php')
   wp-includes/template-loader.php:106
7. require_once('/homepages/u68350/wp-includes/template-loader.php')
   wp-blog-header.php:19
8. require('/homepages/u68350/wp-blog-header.php')
   index.php:17